1,326 prompts matching "Solve the trigonometric equation cos^2(x) - sin^2(x) = 0.5, for 0 <= x <= 360"
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Worked Example: The probability of no events at all in a Poisson distribution
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WAEC Prep: Comparing the mean with the variance of a binomial distribution
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WAEC Prep: The expected number of successes in a practical problem
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WAEC Prep: The variance of a Poisson distribution over two intervals
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Explain Back: Testing whether data are Poisson by comparing mean and variance
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WAEC Prep: The points of inflexion of the normal curve
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WAEC Prep: Why the total area under the normal curve is one
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WAEC Prep: The z-score of a value that lies below the mean
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WAEC Prep: The probability that a normal variable exceeds the mean by more than one standard deviation
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WAEC Prep: Finding the mean or the standard deviation from a given probability
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Worked Example: The continuity correction when approximating a discrete distribution
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WAEC Prep: The zero vector, and what it means
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WAEC Prep: The position of a point in space written as a vector
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WAEC Prep: A three-dimensional vector parallel to another
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Worked Example: The distance between two points in three dimensions
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WAEC Prep: The magnitude of a vector after multiplication by a scalar
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WAEC Prep: The unit vector in the direction of a displacement
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Worked Example: Finding the unit vector in the direction of a given vector
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WAEC Prep: The position vector of a point dividing a line in a ratio
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WAEC Prep: The distance between two points from their position vectors
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